Tire vulcanizing device

Abstract

The invention relates to a tire vulcanization device, which relates to the technical field of tire vulcanization, and comprises a cylinder barrel, a central mechanism and a heating mechanism, the heating mechanism comprises a connecting structure, a heater and a first lifting driving device; the heater is mounted at the top of the connecting structure; the connecting structure penetrates through the bottom of the cylinder barrel and is connected with the first lifting driving device; the central mechanism comprises an operating shaft, a lower chuck, an upper chuck, a curing bladder and a second lifting driving device; the operating shaft penetrates through the heater and the connecting structure, the lower chuck is mounted at the top of the connecting structure, the heater penetrates through the lower chuck and the upper chuck to be mounted at the top of the operating shaft, the curing bladder is connected with the lower chuck and the upper chuck to form a heating cavity, the heater is located in the heating cavity, and the second lifting driving device is connected with the bottom of the operating shaft. When the mold is assembled, the height of the heater is reduced, collision with the mold is avoided, equipment parts are effectively protected, the maintenance cost and downtime are reduced, and the overall efficiency of vulcanization operation is improved.

Description

Technical Field

[0001] This invention relates to the field of tire vulcanization technology, and more particularly to an apparatus for vulcanizing tires. Background Technology

[0002] Tire vulcanization is a key process that uses precise control of temperature, pressure, and time to cause cross-linking reactions in uncured tire blanks, forming a three-dimensional network structure with high strength, high elasticity, and durability. This process directly determines the safety and service life of the tire and is usually completed in a specialized vulcanizing machine.

[0003] Chinese patent CN108778701A discloses a tire vulcanization system for regulating the temperature of a heating medium. The system includes a bladder disposed inside the tire to be vulcanized and at least partially defining a cavity in which the heating medium circulates. A fan and a heater are immersed in the heating medium, and the heater has one or more heating elements that provide energy to the heating medium passing through them before it exits along an outlet path.

[0004] In the aforementioned patent, the heater has a fixed height. During the assembly of the system mold, the heater is prone to collision with the mold. This can cause deformation and damage to the heating element of the heater, affect the temperature control accuracy of the heating medium, and thus interfere with the uniformity and stability of the temperature during the tire vulcanization process. It may also cause damage to the mold, increasing equipment maintenance costs and downtime. Summary of the Invention

[0005] To address the shortcomings of related technologies, this invention provides a device for vulcanizing tires. By using a first lifting drive device to raise and lower the connecting structure and the heater, the height of the heater can be reduced during mold assembly, avoiding collisions with the mold, effectively protecting equipment components, reducing maintenance costs and downtime, and improving the overall efficiency of vulcanization operations.

[0006] This invention provides an apparatus for vulcanizing tires, including a frame, a cylinder, a central mechanism, and a heating mechanism; the cylinder is mounted on the frame; The heating mechanism includes a connecting structure, a heater, and a first lifting drive device; the heater is installed on the top of the connecting structure, the bottom of the connecting structure passes through the cylinder and is connected to the first lifting drive device, the first lifting drive device is installed on the frame, and the heater can be lifted and lowered into and out of the cylinder. The central mechanism includes an operating shaft, a lower chuck, an upper chuck, a vulcanizing bladder, and a second lifting drive device. The operating shaft passes through the heater and the connecting structure. The lower chuck is installed on the top of the connecting structure. The heater passes through the lower chuck. The upper chuck is installed on the top of the operating shaft. The vulcanizing bladder connects the lower chuck and the upper chuck to form a heating chamber. The heater is located inside the heating chamber. The second lifting drive device is connected to the bottom of the operating shaft and installed on the frame.

[0007] In some embodiments, the heating mechanism further includes a vortex impeller and a rotary drive motor. The vortex impeller is sleeved on the operating shaft and rotatably connected to the connecting structure. The output end of the rotary drive motor is connected to the vortex impeller. The rotary drive motor is located inside the cylinder and installed on the connecting structure.

[0008] In some embodiments, the vortex impeller is located inside the heater.

[0009] In some embodiments, the heating mechanism further includes a flow guide shroud fixed to the top of the connecting structure. The heater and the vortex impeller are both located inside the flow guide shroud. The top surface and sidewalls of the flow guide shroud are provided with air holes evenly distributed around the axis of the vortex impeller. The operating shaft passes through the flow guide shroud, and the upper chuck is higher than the flow guide shroud.

[0010] In some embodiments, the connection structure includes a cylinder seat and a cylinder liner; the cylinder barrel is inserted into the bottom of the cylinder seat, the heater and the vortex impeller are both mounted above the cylinder seat, the rotary drive motor is located inside the cylinder seat, the top of the cylinder liner is connected to the bottom of the cylinder seat, and the bottom of the cylinder liner passes through the cylinder barrel and is connected to the first lifting drive device; a limit ring is formed on the outer side of the cylinder seat, and the limit ring can abut against the cylinder barrel.

[0011] In some embodiments, the connection structure also includes a heat insulation plate fixed to the top surface of the cylinder base, and the output end of the rotary drive motor passes through the heat insulation plate to connect to the vortex impeller.

[0012] In some embodiments, the heat insulation plate is provided with a channel consisting of at least one through hole, and the flow area of ​​the channel is not less than 30 mm². 2 .

[0013] In some embodiments, the lower chuck includes a working portion for connecting the vulcanizing capsule and a connecting portion located below the working portion, the connecting portion passing through a limiting ring and threadedly connected to the cylinder seat.

[0014] In some embodiments, a static sealing structure is provided between the cylinder liner and the cylinder seat, and a dynamic sealing structure is provided between the cylinder liner and the operating shaft.

[0015] In some embodiments, the apparatus for vulcanizing tires further includes a heating medium temperature sensor and a heater temperature sensor. The output of the heating medium temperature sensor is mounted on top of the connecting structure and spaced apart from the heater. The output of the heater temperature sensor is mounted on top of the connecting structure and in direct contact with the heater.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention uses a first lifting drive device to drive the connecting structure and heater to lift and lower, which can reduce the height of the heater when assembling the mold, avoid collision with the mold, effectively protect equipment components, reduce maintenance costs and downtime, and improve the overall efficiency of vulcanization operations.

[0017] 2. This invention significantly optimizes the heat distribution within the heating chamber by adding a vortex impeller, a rotary drive motor, and a flow guide shroud. The rotation of the vortex impeller creates a vortex in the heating medium, accelerating heat diffusion. Combined with the guiding effect of the flow guide shroud, heat is evenly distributed across all parts of the tire, solving the problem of uneven heat distribution in traditional devices, improving the uniformity of tire vulcanization, reducing the defect rate, and shortening the heat transfer path to increase production efficiency.

[0018] 3. In terms of structural design, this invention emphasizes stability and protection. The limiting ring on the outside of the cylinder seat can limit the descent height of the connecting structure and avoid damage to the components due to collision. The cylinder seat provides a protective space for the rotary drive motor. The heat insulation plate and small-diameter through hole design can block heat transfer, protect the motor and improve heat utilization. The multiple sealing structure ensures stable pressure and temperature in the heating chamber, providing a reliable environment for vulcanization operations and extending the service life of the equipment. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 A schematic diagram of a device for vulcanizing tires in a heated state; Figure 2 A schematic diagram of a device for removing a vulcanized tire by having the heater retract into the cylinder after the chuck is removed; Figure 3 for Figure 2 An enlarged schematic diagram of region A in the middle.

[0020] In the diagram: 1. Cylinder barrel; 211. Cylinder seat; 212. Cylinder liner; 213. Limiting ring; 214. Heat insulation plate; 22. Heater; 23. Vortex impeller; 24. Rotary drive motor; 25. Draft shield; 31. Operating shaft; 32. Lower chuck; 321. Working part; 322. Connecting part; 4. Static sealing structure; 5. Dynamic sealing structure. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] like Figure 1-3 As shown in an illustrative embodiment of a vulcanized tire apparatus of the present invention, the apparatus includes a frame, on which a cylinder 1, a central mechanism, and a heating mechanism are also provided. The cylinder 1 is fixedly mounted on the frame, serving as one of the basic load-bearing components of the entire apparatus, and its stable installation provides solid support for the stable operation of subsequent mechanisms. The heating mechanism consists of a connecting structure, a heater 22, and a first lifting drive device. The heater 22 is mounted on top of the connecting structure. After passing through the cylinder 1, the bottom of the connecting structure is connected to the first lifting drive device, which is also mounted on the frame. This integrated installation layout makes the fit between the components tighter, reducing shaking and displacement during operation. The heater 22 can move in and out of the cylinder 1 under the drive of the first lifting drive device.

[0026] The central mechanism includes an operating shaft 31, a lower chuck 32, an upper chuck, a vulcanizing bladder, and a second lifting drive device. The operating shaft 31 passes sequentially through the heater 22 and the connecting structure. Its through-type design ensures coaxiality between components, resulting in more even stress distribution during operation and reducing wear and malfunctions caused by eccentricity. The lower chuck 32 is mounted on top of the connecting structure, and the heater 22 passes through it. This nested layout makes full use of space, resulting in a more compact structure. The upper chuck is mounted on top of the operating shaft 31. The vulcanizing bladder connects the lower chuck 32 and the upper chuck, forming a closed heating chamber, inside which the heater 22 is located. The second lifting drive device is connected to the bottom of the operating shaft 31 and mounted on the frame. Driven by the second lifting drive device, the operating shaft 31 and the upper chuck can be raised and lowered, thereby opening and closing the vulcanizing bladder.

[0027] In this embodiment, the first lifting drive device drives the connecting structure and heater 22 to achieve lifting and lowering, allowing for flexible adjustment of the heater 22's height. This function is of great significance in actual production. During mold assembly, the heater 22 lowers its height to avoid collision with the mold. As a crucial component in the tire vulcanization process, the mold's precision and integrity directly affect the tire's molding quality. The heater 22 is also the core heating element in the device; a collision would not only damage the mold and heater 22 but also cause production stoppages, increasing maintenance costs and downtime. By avoiding collisions, the mold and heater 22 are effectively protected, reducing equipment maintenance costs and downtime, and improving vulcanization efficiency. In actual production, every downtime for maintenance causes delays in production schedules and increases production costs. This design of the device minimizes such occurrences, bringing significant economic benefits to the enterprise.

[0028] Based on the aforementioned heating mechanism, this embodiment further includes a vortex impeller 23 and a rotary drive motor 24. The vortex impeller 23 is mounted on the operating shaft 31 and rotatably connected to the connecting structure. The output end of the rotary drive motor 24 is connected to the vortex impeller 23, and the rotary drive motor 24 is located inside the cylinder 1 and mounted on the connecting structure. In traditional vulcanizing devices, the heating medium flows slowly within the heating chamber, resulting in uneven heat distribution and a tendency for insufficient or excessive vulcanization in certain areas of the tire. Tire vulcanization is a complex physical and chemical process, and uniform heat distribution is one of the key factors in ensuring tire quality. If the heat distribution within the heating chamber is uneven, some parts of the tire may be under-vulcanized due to excessively low temperatures, leading to a decrease in tire strength and wear resistance; while other parts may be over-vulcanized due to excessively high temperatures, making the tire brittle and prone to cracking. These issues can severely affect the tire's service life and safety. When heater 22 generates heat, the rotary drive motor 24 drives the vortex impeller 23 to rotate, which creates vortices in the heating medium within the heating chamber. This accelerates the flow of the heating medium, resulting in a more uniform heat distribution within the heating chamber. This prevents localized overheating or underheating, further improving the uniformity of tire vulcanization, ensuring consistent vulcanization across all parts of the tire, reducing the defect rate, and solving the technical problem of uneven heat distribution within the heating chamber. The formation of vortices breaks the original static state of the heating medium, allowing heat to be quickly transferred to every corner of the heating chamber, ensuring that every part of the tire undergoes a vulcanization reaction at a suitable temperature.

[0029] Furthermore, by placing the vortex impeller 23 inside the heater 22, the rotation of the vortex impeller 23 directly drives the flow of the heating medium around the heater 22, allowing the heat generated by the heater 22 to diffuse more quickly throughout the heating chamber, shortening the heat transfer path and improving heat transfer efficiency. This device, by placing the vortex impeller 23 inside the heater 22, directly pushes the heating medium around the heater 22, enabling the heat to diffuse rapidly in all directions, significantly shortening the heat transfer time. This allows the tire to reach the required vulcanization temperature more quickly, shortening the vulcanization process time and improving production efficiency. By placing the vortex impeller 23 inside the heater 22, the technical problems of low heat transfer efficiency and long vulcanization cycles are effectively solved.

[0030] The heating mechanism is also equipped with a flow guide shroud 25 fixed to the top of the connecting structure. The heater 22 and the vortex impeller 23 are both located inside the flow guide shroud 25. The top surface and side walls of the flow guide shroud 25 are provided with air holes evenly distributed around the axis of the vortex impeller 23. The operating shaft 31 passes through the flow guide shroud 25, and the upper chuck is positioned higher than the flow guide shroud 25. In traditional devices, the flow of the heating medium is irregular, and uneven heat distribution still exists in some areas. Even with the action of the vortex impeller 23, the flow of the heating medium may still be turbulent, resulting in uneven heat distribution in some areas. The flow guide shroud 25 guides the flow of the heating medium, allowing the heating medium driven by the vortex impeller 23 to flow along a preset path and diffuse evenly to all areas of the heating chamber through the air holes, further enhancing the uniformity of heat distribution. The flow guide shroud 25 acts as a guide device, which can regulate the vortex generated by the vortex impeller 23 and make it flow in a specific direction, ensuring that the heating medium can reach every corner of the heating chamber.

[0031] Furthermore, the connecting structure specifically consists of a cylinder seat 211 and a cylinder sleeve 212. The bottom of the cylinder seat 211 is inserted into the cylinder barrel 1. The heater 22 and the vortex impeller 23 are both installed above the cylinder seat 211. The rotary drive motor 24 is located inside the cylinder seat 211. The top of the cylinder sleeve 212 is connected to the bottom of the cylinder seat 211, and the bottom of the cylinder sleeve 212 passes through the cylinder barrel 1 and is connected to the first lifting drive device. A limit ring 213 is formed on the outer side of the cylinder seat 211. When the first lifting drive device drives the connecting structure to rise, the limit ring 213 can abut against the cylinder barrel 1. The setting of the limit ring 213 can limit the descent height of the connecting structure, avoid excessive descent of the connecting structure leading to damage to components, and at the same time ensure that components such as the heater 22 are in a suitable working position, ensuring the stability of the vulcanization operation. During device operation, the lifting and lowering movement of the connecting structure requires precise control. Excessive descent may cause the cylinder seat 211 to collide with the bottom of the cylinder barrel 1, damaging the cylinder seat 211, cylinder barrel 1, and components such as the heater 22 and vortex impeller 23 mounted on the cylinder seat 211. The presence of the limiting ring 213 effectively prevents this from happening. When the connecting structure descends to a certain extent, the limiting ring 213 contacts the cylinder barrel 1, preventing further descent and protecting the components from damage. Simultaneously, the limiting ring 213 ensures that components such as the heater 22 are always in the appropriate working position, guaranteeing smooth vulcanization operations and solving the technical problem of components being easily damaged by excessive upward movement of the connecting structure. The cooperative installation method of the cylinder seat 211 and cylinder barrel 1 ensures the installation stability of the connecting structure and provides protective space for components such as the rotary drive motor 24, reducing the impact of external factors on its operation. The design of the cylinder seat 211 being inserted into the cylinder barrel 1 makes the connection between the connecting structure and the cylinder barrel 1 tighter, capable of withstanding greater loads and reducing shaking and displacement during operation. Meanwhile, the space inside the cylinder base 211 provides a relatively enclosed environment for the rotary drive motor 24, which can effectively prevent external factors such as dust and moisture from entering and affecting the normal operation of the motor, thus solving the technical problems of insufficient component protection and susceptibility to external interference.

[0032] The connection structure also includes a heat insulation plate 214 fixed to the top surface of the cylinder base 211. The output end of the rotary drive motor 24 passes through the heat insulation plate 214 and connects to the vortex impeller 23. In conventional devices, the heat generated by the heater 22 is easily transferred to the rotary drive motor 24, causing the motor to experience performance degradation or even damage due to high temperatures. The rotary drive motor 24 is a crucial power component in the device, and its performance stability directly affects the operation of the vortex impeller 23, thereby affecting the heat distribution within the heating chamber. If the motor experiences performance degradation due to high temperatures, the rotational speed of the vortex impeller 23 will become unstable, leading to uneven flow of the heating medium and affecting the tire vulcanization quality. If the motor is damaged, the entire device will be unable to operate normally, requiring shutdown for maintenance and resulting in production losses. The heat insulation plate 214 effectively prevents the heat generated by the heater 22 from being transferred to the rotary drive motor 24 inside the cylinder base 211, avoiding the impact of high temperatures on the performance of the rotary drive motor 24 and extending its service life. The heat insulation plate 214 is typically made of materials with good heat insulation properties, such as ceramic fiber and asbestos. These materials effectively prevent heat conduction, isolating the motor from the high-temperature environment. Simultaneously, the heat insulation plate 214 also reduces heat transfer to other components such as the cylinder 1, further improving heat utilization efficiency and solving the technical problems of high temperatures affecting the performance of the rotary drive motor 24 and high heat loss. Effective heat isolation allows more heat to be used for tire vulcanization, reducing heat waste and improving energy utilization efficiency.

[0033] Furthermore, the heat insulation plate 214 is provided with at least one through hole, and all the through holes form a channel connecting the upper and lower spaces of the heat insulation plate 214, with a flow area of ​​not less than 30 mm². 2 The channel design ensures pressure balance on both sides of the insulation plate 214. During operation, the heating medium in the heating chamber experiences pressure changes due to temperature variations. If the pressure on both sides of the insulation plate 214 becomes unbalanced, it may deform or even damage the insulation plate, affecting its insulation performance. The through holes allow airflow on both sides of the insulation plate 214, maintaining pressure balance and preventing damage to the insulation plate 214 due to pressure differences.

[0034] Furthermore, the diameter of the through-hole is less than five millimeters, which minimizes heat transfer to the inside of the cylinder seat 211 through the through-hole, enhancing the heat insulation effect and ensuring that the rotary drive motor 24 is always in a suitable operating temperature environment. Due to the small diameter of the through-hole, the amount of heat transferred through it is very limited and will not significantly affect the temperature inside the cylinder seat 211, thus ensuring that the rotary drive motor 24 is always in a suitable operating temperature environment and solving the technical problem of heat leakage caused by the through-hole of the heat insulation plate 214. This ingenious design, while ensuring pressure balance, minimizes heat transfer, fully demonstrating the scientific and rational nature of the device design.

[0035] In some embodiments, the lower chuck 32 includes a working portion 321 for connecting the vulcanizing bladder and a connecting portion 322 located below the working portion 321. The connecting portion 322 passes through the limiting ring 213 and is threadedly connected to the cylinder seat 211. The threaded connection makes the connection between the lower chuck 32 and the cylinder seat 211 more secure, and also facilitates the disassembly and replacement of the lower chuck 32. During the tire vulcanization process, the vulcanizing bladder needs to withstand significant pressure and temperature changes. The strength of the connection between the lower chuck 32 and the cylinder seat 211 directly affects the installation stability of the vulcanizing bladder. If the connection is not secure, the vulcanizing bladder may fall off or loosen during operation, leading to leakage of the heating medium and affecting the vulcanization effect. The threaded connection provides sufficient connection strength to ensure that there is no relative displacement between the lower chuck 32 and the cylinder seat 211. When maintenance or replacement of the vulcanizing bladder is required, the lower chuck 32 can be easily removed, reducing maintenance difficulty and cost. The vulcanizing bladder is a consumable component that requires regular replacement and maintenance. The convenient disassembly method can greatly shorten maintenance time and reduce downtime losses. The connection between the working part 321 and the vulcanizing bladder ensures the stability of the vulcanizing bladder installation, guaranteeing that the vulcanizing bladder maintains a good seal throughout the vulcanization process. This prevents leakage of the heating medium from affecting the vulcanization effect and solves the technical problems of loose connection of the lower chuck 32, poor sealing effect of the vulcanizing bladder, and inconvenient maintenance. A good seal ensures stable pressure and temperature within the heating chamber, providing a favorable environment for tire vulcanization.

[0036] In some embodiments, a static sealing structure 4 is provided between the cylinder liner 212 and the cylinder seat 211, and a dynamic sealing structure 5 is provided between the cylinder liner 212 and the operating shaft 31. The connection 322 between the cylinder liner 212 and the cylinder seat 211, and between the cylinder liner 212 and the operating shaft 31, is prone to heating medium leakage, leading to unstable pressure and temperature within the heating chamber and affecting the vulcanization effect. Leakage of the heating medium will cause a drop in pressure and temperature within the heating chamber, failing to meet the conditions required for tire vulcanization, resulting in insufficient tire vulcanization. Simultaneously, leaked heating medium may also pollute the surrounding environment, affecting the normal operation of the equipment. The static sealing structure 4 effectively prevents leakage at the connection 322 between the cylinder seat 211 and the cylinder liner 212, ensuring the sealing of the cylinder barrel 1. The static sealing structure 4 typically uses sealing elements such as sealing rings, providing a reliable sealing effect in a static state. The dynamic sealing structure 5, on the other hand, maintains the seal between the cylinder liner 212 and the operating shaft 31 during the lifting and lowering movement of the operating shaft 31, preventing heating medium leakage from this location. The lifting and lowering movement of the operating shaft 31 is a dynamic process, and the dynamic sealing structure 5 needs to be able to adapt to this movement while maintaining good sealing performance. The dynamic sealing structure 5 typically adopts the form of packing seal or mechanical seal, which can effectively prevent the leakage of heating medium when the operating shaft 31 moves. Through the combined use of the static sealing structure 4 and the dynamic sealing structure 5, the pressure and temperature in the heating chamber are ensured to be stable, providing a stable environment for tire vulcanization, reducing vulcanization failures caused by sealing problems, improving the reliability of the device, and solving the technical problems of poor sealing performance and unstable pressure and temperature in the heating chamber.

[0037] In some embodiments, the vulcanizing tire apparatus is further equipped with a heating medium temperature sensor and a heater 22 temperature sensor. The output end of the heating medium temperature sensor is installed on the top of the connecting structure and spaced apart from the heater 22, for detecting the temperature of the heating medium inside the heating chamber. The output end of the heater 22 temperature sensor is installed on the top of the connecting structure and directly contacts the heater 22, for detecting the temperature of the heater 22 itself. The temperature sensors provide a precise means of temperature monitoring for the operation of the apparatus, enabling real-time monitoring of the temperature of the heating medium inside the heating chamber and the temperature of the heater 22 itself. The temperature of the heating medium directly affects the vulcanization effect of the tire. By detecting the temperature of the heating medium, the output power of the heater 22 can be adjusted in a timely manner to ensure that the temperature of the heating medium remains within a suitable range. Monitoring the temperature of the heater 22 itself can promptly detect any abnormalities such as overheating, preventing production accidents caused by heater 22 malfunctions. In addition to conventional monitoring of the gas temperature inside the vulcanizing bladder, this embodiment can also monitor the temperature of the heater 22 in a timely manner based on the detection results of the heater 22 temperature sensor, avoiding persistently high surface temperatures of the heater 22 due to the small heat capacity and slow heat transfer of air, resulting in a significant temperature response delay, thus helping to extend the service life of the heater 22. Traditional temperature monitoring typically only monitors the temperature of the gas inside the vulcanizing capsule. However, due to the low heat capacity and slow heat transfer of air, the temperature of the gas inside the vulcanizing capsule may not have changed significantly even when the surface temperature of the heater 22 is already too high, resulting in a delayed temperature response and making it impossible to detect overheating of the heater 22 in a timely manner. This device, by adding a temperature sensor to the heater 22, can directly monitor the temperature of the heater 22, promptly detect abnormalities, and take measures to prevent damage to the heater 22 due to overheating. This extends the service life of the heater 22 and reduces equipment maintenance costs. Through the description of several embodiments of the apparatus for vulcanizing tires according to the present invention, it can be seen that the apparatus embodiments of the present invention for vulcanizing tires have at least one or more of the following advantages: 1. The present invention uses a first lifting drive device to drive the connecting structure and heater to lift and lower, which can reduce the height of the heater when assembling the mold, avoid collision with the mold, effectively protect equipment components, reduce maintenance costs and downtime, and improve the overall efficiency of vulcanization operations.

[0038] 2. This invention significantly optimizes the heat distribution within the heating chamber by adding a vortex impeller, a rotary drive motor, and a flow guide shroud. The rotation of the vortex impeller creates a vortex in the heating medium, accelerating heat diffusion. Combined with the guiding effect of the flow guide shroud, heat is evenly distributed across all parts of the tire, solving the problem of uneven heat distribution in traditional devices, improving the uniformity of tire vulcanization, reducing the defect rate, and shortening the heat transfer path to increase production efficiency.

[0039] 3. In terms of structural design, this invention emphasizes stability and protection. The limiting ring on the outside of the cylinder seat can limit the descent height of the connecting structure and avoid damage to the components due to collision. The cylinder seat provides a protective space for the rotary drive motor. The heat insulation plate and small-diameter through hole design can block heat transfer, protect the motor and improve heat utilization. The multiple sealing structure ensures stable pressure and temperature in the heating chamber, providing a reliable environment for vulcanization operations and extending the service life of the equipment.

[0040] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. An apparatus for vulcanizing tires, comprising a frame, characterized in that, Also includes: Cylinder, central mechanism, and heating mechanism; cylinder mounted on the frame; The heating mechanism includes a connecting structure, a heater, and a first lifting drive device; The heater is installed on the top of the connecting structure, and the bottom of the connecting structure after passing through the cylinder is connected to the first lifting drive device. The first lifting drive device is installed on the frame, and the heater can be lifted and lowered to enter and exit the cylinder. The central mechanism includes an operating shaft, a lower chuck, an upper chuck, a vulcanizing bladder, and a second lifting drive device. The operating shaft passes through the heater and the connecting structure. The lower chuck is installed on the top of the connecting structure. The heater passes through the lower chuck. The upper chuck is installed on the top of the operating shaft. The vulcanizing bladder connects the lower chuck and the upper chuck to form a heating chamber. The heater is located inside the heating chamber. The second lifting drive device is connected to the bottom of the operating shaft and installed on the frame.

2. The apparatus for vulcanizing tires according to claim 1, characterized in that, The heating mechanism also includes a vortex impeller and a rotary drive motor. The vortex impeller is sleeved on the operating shaft and rotatably connected to the connecting structure. The output end of the rotary drive motor is connected to the vortex impeller. The rotary drive motor is located inside the cylinder and installed on the connecting structure.

3. The apparatus for vulcanizing tires according to claim 2, characterized in that, The vortex impeller is located inside the heater.

4. The apparatus for vulcanizing tires according to claim 2, characterized in that, The heating mechanism also includes a guide shroud fixed to the top of the connecting structure. The heater and the vortex impeller are both located inside the guide shroud. The top surface and side walls of the guide shroud are provided with air holes evenly distributed around the axis of the vortex impeller. The operating shaft passes through the guide shroud, and the upper chuck is higher than the guide shroud.

5. The apparatus for vulcanizing tires according to claim 2, characterized in that, The connecting structure includes a cylinder seat and a cylinder liner; the cylinder barrel is inserted into the bottom of the cylinder seat, the heater and the vortex impeller are both installed above the cylinder seat, the rotary drive motor is located inside the cylinder seat, the top of the cylinder liner is connected to the bottom of the cylinder seat, and the bottom of the cylinder liner passes through the cylinder barrel and is connected to the first lifting drive device; a limit ring is formed on the outer side of the cylinder seat, and the limit ring can abut against the cylinder barrel.

6. The apparatus for vulcanizing a tire according to claim 5, characterized in that, The connection structure also includes a heat insulation plate fixed to the top surface of the cylinder base, and the output end of the rotary drive motor passes through the heat insulation plate to connect to the vortex impeller.

7. The apparatus for vulcanizing tires according to claim 6, characterized in that, The insulation panel has a channel consisting of at least one through hole, and the flow area of ​​the channel is not less than 30 mm². 2 .

8. The apparatus for vulcanizing a tire according to claim 5, characterized in that, The lower chuck includes a working part that connects to the vulcanizing capsule and a connecting part located below the working part. The connecting part passes through a limiting ring and is threadedly connected to the cylinder seat.

9. The apparatus for vulcanizing a tire according to claim 5, characterized in that, A static seal is provided between the cylinder liner and the cylinder seat, and a dynamic seal is provided between the cylinder liner and the operating shaft.

10. An apparatus for vulcanizing tires according to claims 1-9, characterized in that, It also includes a heating medium temperature sensor and a heater temperature sensor. The output end of the heating medium temperature sensor is installed on the top of the connecting structure and is spaced apart from the heater. The output end of the heater temperature sensor is installed on the top of the connecting structure and is in direct contact with the heater.

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